06.13.07
new fs for linux!
Chris Mason from Oracle company after last linux sammit has announced alpha version of Btrfs ( funny name for russian-speaking people 
)
* Extent based file storage (2^64 max file size)
* Space efficient packing of small files
* Space efficient indexed directories
* Dynamic inode allocation
* Writable snapshots
* Subvolumes (separate internal filesystem roots)
- Object level mirroring and striping
* Checksums on data and metadata (multiple algorithms available)
- Strong integration with device mapper for multiple device support
- Online filesystem check
* Very fast offline filesystem check
- Efficient incremental backup and FS mirroring
* - implemented.
Very well! Maybe Sun will release opensolaris under GPL3 and then linux get and ZFS too.